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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
using System;
using System.Collections;
using System.Globalization;
using System.Text;
namespace Apache.Qpid.Sasl
{
public abstract class SaslClient : ISaslClient
{
private bool _isComplete;
private IDictionary _properties;
private string _authorizationId;
private string _serverName;
private string _protocol;
private ISaslCallbackHandler _handler;
protected string AuthorizationId
{
get { return _authorizationId; }
}
protected string ServerName
{
get { return _serverName; }
}
protected string Protocol
{
get { return _protocol; }
}
protected ISaslCallbackHandler Handler
{
get { return _handler; }
}
protected IDictionary Properties
{
get { return _properties; }
}
protected SaslClient(
string authid, string serverName,
string protocol, IDictionary properties,
ISaslCallbackHandler handler)
{
if ( properties == null )
throw new ArgumentNullException("properties");
if ( handler == null )
throw new ArgumentNullException("handler");
_authorizationId = authid==null ? "" : authid;
_serverName = serverName;
_protocol = protocol;
_properties = properties;
_handler = handler;
if ( _serverName == null || _serverName.Length == 0 )
{
_serverName = System.Net.Dns.GetHostName();
}
}
#region ISaslClient Implementation
//
// ISaslClient Implementation
//
public abstract string MechanismName { get; }
public abstract bool HasInitialResponse { get; }
public bool IsComplete
{
get { return _isComplete; }
}
public abstract byte[] EvaluateChallenge(byte[] challenge);
public virtual object GetNegotiatedProperty(string propName)
{
return null;
}
public virtual byte[] Unwrap(byte[] buffer, int offset, int length)
{
throw new NotImplementedException();
}
public virtual byte[] Wrap(byte[] buffer, int offset, int lenght)
{
throw new NotImplementedException();
}
#endregion // ISaslClient Implementation
#region Helper Methods
//
// Helper Methods
//
protected void SetComplete()
{
_isComplete = true;
}
protected static string ToHex(byte[] buffer)
{
StringBuilder builder = new StringBuilder();
foreach ( byte b in buffer )
{
builder.Append(b.ToString("x2", CultureInfo.InvariantCulture));
}
return builder.ToString();
}
#endregion // Helper Methods
} // class SaslClient
} // namespace Apache.Qpid.Sasl.Mechanisms
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